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4 papers · 2 filters
Autofocusing Self-Imaging: The Symmetric Pearcey Talbot-like Effect
Jiajia Zhao, You Wu, Zejia Lin +7
The Talbot like effect of symmetric Pearcey beams (SPBs) is presented numerically and experimentally in the free space. Owing to the Talbot like effect, the SPBs have the property…
Modal dynamics in multimode optical fibers: An attractor of high-order modes
Weitao He, Ruihuan Wu, Weiyi Hong +1
Multimode fibers (MMFs) support abundant spatial modes and involve rich spatiotemporal dynamics, yielding many promising applications. Here, we investigate the influences of the nu…
Spatial beam self-cleaning in bi-tapered multimode fibers
Xiao-Jun Lin, Yu-Xin Gao, Jin-Gan Long +7
We report the spatial beam self-cleaning in bi-tapered conventional multimode fibers (MMFs) with different tapered lengths. Through the introduction of the bi-tapered structure in…
Efficient sorting of orbital-angular-momentum states with large topological charges and their unknown superpositions via machine learning
Ling-Feng Zhang, Ya-Yi Lin, Zhen-Yue She +6
Light beams carrying orbital-angular-momentum (OAM) play an important role in optical manipulation and communication owing to their unbounded state space. However, it is still chal…